Paper-matrix drier



E. STOSCH,

PAPER MATRIX DRIER. ,496.v Patented Aug. 18, 1885.

(No Model.)

cocco-ouen l Elllm N. PETERS, Phnxo-Lnhognpmr. washnglon. DVC.

"` LNITED STATES PATlN'Tv OFFICE.

ERNST sToscH, or sfrnTTIN, GERMANY, AssIGNoR To HENRY4 HARTT, or

CHICAGO,

ILLINOIS.v

PAPER-MATRIX D RIER.

SPECIFICATIONfomingpart of Letters Parent 310,324,496, dared August 18, 1885.

Application filed April 16, 1893. (No model.) I

To all whom it may concern.-

Be it known that I, ERNST STOSOH, of Stettin, in the Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Apparatus .for Drying Stereotype Matrices;and I do hereby declare'the following to'be a full, clear, and' exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to ythe guresand letters of reference marked thereon.

My invention has for its object to provide an improved drying apparatus for stereotype matrices 5 and it consists in certain novel details of construction and combinations of parts which I will now proceed to describe.

In the accompanying drawings, Figure l is a longitudinal vertical section of a drying ap'- paratus constructed in accordance with my invention. Fig. 2 is a sectional view on the line a; x of Fig. 1. Fig. 3 is a horizontal sectional View. Fig. Llis a top plan view. Fig. 5 is aview of one of the frames for holding the matrices, and Fig. 6 is a sectional view'ot' the same on the line y y of Fig. 5. Fig. 7 is a view showing the manner of connecting the chambers k to the top of the drier. i

Similar letters of reference in the several gures indicate the same part-s.

In the making of matrices for stereotyping printed matter, heretofore it has been the practice to place the papier-mache wet upon the surface of the type, press it down, remove the papiermach, and place in an oven, so that the'matrix may be dried; but the objection to this is the matrix will dry quicker on ,the upper than on the lower side, and is liable to warp; but my invention is designed to obviate the objections to this form by suspending the matrices in a suitable dryingchamber and supporting them at the edges only, so that they may be dried equally on all sides and will be less liable to warp out of shape.

In carrying out my invention I provide a chamber or receptacle of any suitable size constructed with the walls composed of sheet` metal shells t a, with a filling between them of non-conducting material c, so that no heat from the drier will be lost by radiation, and within the chamber thus formed are two partitions, g m, one at'either end, the former, g, Y

at the forward end, and extending from the top to a position near the bottom of the cha1nber, leaving a space, h, as shown. Sheet-metal pieces j j are provided extending from the top of this partition down to the bottom of the chamber, slightly diverging n ear the bottom, as shown. The partition m at the other end of the chamber extends from the top nearly to the bottom, leaving a space, n, correspond- 6o ing to the space 7L under the other partition, and near the upper end of it a detlecting or retarding plate, p, is provided, extending nearly across the passage-way formed between the partition and the end of the chamber, a small space, r r, being left at each end. The object of this deliecting-plate is to retard somewhat the draft through the chamber and prcvent the steam or hot air passing oii without heating the chambers 7c. 70

y 7c k represent two chambers or boxes closed at the bottom and secured to a lid or cover, q, in any suitable manner, and projecting down into the main chamber to about a level with the end of the partitions, and slots t t are pro vided in the covers of these chambers for the -insertion and removal of the frame supporting `the matrices.

d represents a pipe or tube provided with a valve, e, for regulating the amount of hot air or steam permitted to enter, 8O

f and s a line or aperture through which it finds an exit. y

In Fig. 7 I have shown one manner of connecting the chamber 7c to the topqot' the drier, in which the chambers are made ofsheet metal, S5 and are provided with the outwardly-turned anges, as shown, through which and the top or lid the bolts z pass; but it is obvious that the chambers may be connected inany other suitable manner. go

It will be observed that the chambers k are supported only at their upper ends, thus permitting a free circulation of air or steam around them inthe space t' t' t.

and provided with the teeth o', corresponding to the perforations in the frame u.

The papier-mache matrices to be dried are placed upon the frame u, and the section e is then forced down and its teeth pushed through the matrix and through the perforations in the cooperating sections, the two sections,with the matrix between them,being held together by means of a suitable spring-catch, w, at the lower ends.

The frame containing the wet matrix is now inserted in the slots tin the cover of the chamber, with the ends of the bar resting on the top and the matrix wholly within the chamber k. Steam or hot airis now admitted through the pipe d, and, striking t-he partition g, descends and passes through the aperture h, rises and circulates around the chambers 7c in the spaces i', containing the matrices, heating them, and,beco1ning cooler, falls to the bottom,passes under the partition m, rises, and, striking the deiieeting-plate p, passes through the openings fr r, thence to the exit-flue s.

It will be observed that the frames and matrices hang in a vertical position, which is also a great advantage over laying them horizontally, as thc hot air in circulating willpass up both sides, carrying o5 the moisture and permitting them to dry more evenly.

XVhile I have described only two chambers for containing the matrices and frames, it is obvious that a greater number can be elnploycd and the large chamber increased in size indefinitely, so as to accommodate them, and also that the proportions and positions of the parts can be varied without departing from the spirit of my invention.

XVith the temperature in the chambers k at 120 Fahrenheit I iind that I can dry matrices for ordinary newspaper pages in a few moments, and this is a great advantage where a newspaper is to be printed, no time being lost in waiting for the matrices to dry before stereotyping.

I claim as my inventionl. In a drying apparatus for stereotype-matrices, the combination, with the heatingchamber provided with the partitions g andl m, of the chamber or chambers for containing the matrices, located within' the heatingchamber, substantially as described.

2. In a drying apparatus for stereotype-matrices, the combination, with the heatingchamber provided with the partitions g audf m and the retarding-platep, of the chamber or chambers for containing the matrices, 1o'- catcd Within the heating-chamber, substantially as described.

3. In a drying apparatus for stereotype-matrices, the combination, with the heatingchamber, a valve for regulating the amount of hot air or steam admitted, andpartitions or abutments for preventing thedirect passage of the steam or hot air through the chamber, of the chamber or chambers for containing the matrices,located within the heating-chainber, substantially as described.

4. A frame for supporting stereotype-matrices; consisting of the two sections provided with the retaining hooks or teeth andadapted to support the matrix between them and at the edges only, substantially as described.

5. A frame for supporting stereotype-matrices, consisting of the two sections hinged together, provided with retaining hooks or teeth and adapted to support the matrix between them and at the edges only, substantially as described.

6. A frame for supporting stereotype-matrices, consisting of two sections hinged together at one edge, and one provided with teeth, and the other provided with co operating perforations, substantially as described;

7. A frame for supportingstereotype-inatrices, consisting of two sections hinged together at one edge, the one providedwith the cross-bar and handle and the perforations, as shown, and the other section hinged to the former and provided with the teeth or project-ionsco-operating with the perforations in it .to hold the matrix at the edges only,sub stantially as described.

8. The combination, with the heating-chamber in which the hot air or steam circulates, of the series of drying-chambers for contain- 95 ing the matrices, locatedwithin the heatingchamber, and the frames for supporting the matrices at their edges only, adapted to be suspended within the drying-chambers, substantially as described.

9. The combination,with the heating-chamber, of the dryingchamber located within it and containing the matrix, the frame for supporting the matrix at the edges only placedy in a vertical position, whereby the two sides x05 of the matrix will be heated and dried equally, and it will be prevented from warping, substantially as described.

10. Thecombination,withtheheating-chamber, of the drying-chamber located within it 11o and adapted to contain the matrix, having the slot in its top for permitting the inser-. tion and removal of the matrix-frame, substantially as described.

In testimony whereof I have signed my name r r 5 to this specication in the presence of twosubscribing witnesses.

ICO

ERNST S-'lOSCI-I.

Witnesses:

GEO. F. LINCOLN, J ULrUs DI'r'rMnR. 

